Dr Krishnan is a physician-scientist with expertise in the care of patients with asthma, chronic obstructive pulmonary disease (COPD), COVID-19, and Long COVID. Dr Krishnan is Professor and Associate Vice Chancellor for Population Health Sciences at the University of Illinois Chicago.  He is an investigator in National Institutes of Health (NIH) and Patient Centered Outcomes Research Institute-funded research networks and is conducting studies to identify new treatment strategies for patients with asthma, COPD, COVID-19, and Long COVID. He is on the Medical and Scientific Advisory Committee for the COPD Foundation, and served as a member of the Pulmonary-Allergy Drugs Advisory Committee for the U.S. Food and Drug Administration (FDA) from 2007-2012 (Chair, 2011-2012), the National Committee for Quality Assurance (NCQA) Respiratory Measurement Advisory Panel (2010- 2015), and the National Heart, Lung, and Blood Institute's Clinical Trials Review Committee (2012- 2017; Chair 2016-17). He co-chaired the American Thoracic Society Guidelines for the use of supplemental oxygen in patients with chronic lung disease.  Dr Krishnan has authored more than 375 peer-reviewed publications in major medical journals, including JAMA, the New England Journal of Medicine, and the American Journal of Respiratory and Critical Care Medicine. He received his Bachelor’s in Molecular Biology from The University of Texas at Austin, his medical degree from the Baylor College of Medicine, completed his clinical training at John Hopkins University School of Medicine and a PhD in Clinical Investigation from the John Hopkins Bloomberg School of Public Health. He also completed the Advanced Management Program at the Harvard Business School.